added entry in toc

Author: vvs11

articles/playwright-testing/toc.yml

@@ -57,6 +57,11 @@ items:
       href: how-to-use-service-features.md
     - name: Use service package options
       href: how-to-use-service-config-file.md
+- name: Tutorials
+  items: 
+    - name: Accelerate Playwright test run and troubleshoot efficiently
+      displayName: Playwright, reporting, parallel execution, cloud-hosted browsers, service, playwright service
+      href: tutorial-run-end-to-end-tests.md
 - name: Samples
   items:
     - name: Contoso Traders cloud testing demo